NOT IN THE MANGA™

Yeah, that seems unlikely. I don't think Toriyama would make an adult version of Goten that still has Goku's hair. I believe Black's appearance is directly related to Goku somehow, although Goku's deceased in Trunks' timeline. Quite a mistery.

We shall know something soon, if the next episode's title is anything to go by.

Freelance Mappzor

Well they did say something like him being from universe 10. Also somehow related to a Kaioshin there. Chances are its something along the lines of "You traveled through time so we are gonna destroy you for braking that taboo"

Proud owner of Half-Life

Alright so after today's dbs episode my theory has gone out the window now.

That kaioshin Apprentice in universe 10 (zamasu) is black. He has some sort of evil in his heart. Maybe it will be a similar story to dragonball. The time when kami and piccolo were seperated (good and evil).